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(深圳市建筑設(shè)計研究總院有限公司, 深圳 518031)
[摘要]嘉峪關(guān)第一人民醫(yī)院位于8度區(qū),為重點設(shè)防類建筑。為了提高建筑的抗震性能,采用了基礎(chǔ)隔震技術(shù),隔震層由帶有鉛芯的橡膠支座和不帶鉛芯的橡膠支座組成。中震作用下隔震結(jié)構(gòu)分析結(jié)果表明:隔震支座的水平變形、豎向拉應(yīng)力、壓應(yīng)力和抗風(fēng)承載力均能滿足規(guī)范和技術(shù)規(guī)程的相關(guān)要求;該項目水平減震系數(shù)為0-38,結(jié)構(gòu)設(shè)計可按7度進(jìn)行地震作用計算。對采用和不采用隔震技術(shù)的結(jié)構(gòu)抗震性能指標(biāo)進(jìn)行對比,結(jié)果表明采用隔震技術(shù)的結(jié)構(gòu)有明顯的安全性能提升和經(jīng)濟(jì)效益。
[關(guān)鍵詞]醫(yī)療建筑; 高烈度區(qū); 隔震設(shè)計; 橡膠隔震支座
中圖分類號:TU352-1文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2019)24-0067-05
Design and analysis of isolation structure of Jiayuguan First People′s Hospital
Wang Qiwen, Zhou Bin, Tang Xi, Lin Wei, Yang Wanghua
(Shenzhen General Institute of Architectural Design and Research Co. Ltd., Shenzhen 518031, China)
Abstract:Jiayuguan First People′s Hospital is located in the area with 8 degrees of seismic fortification intensity and is a key seismic fortification building. In order to improve the seismic performance of the building, the base isolation technology was adopted, and the isolation layer was composed of a rubber bearing with a lead core and a rubber bearing without a lead core. The analysis results of the isolated structure under the action of the fortification earthquake show that the horizontal deformation, vertical tensile stress, compressive stress and wind bearing capacity of the seismic isolation bearing can meet the relevant requirements of the specification and technical regulations; the horizontal damping coefficient of the project is 0-38, and the seismic action can be calculated according to the 7 degrees of seismic fortification intensity in the structural design. Comparing the seismic performance indexes of structures with and without isolation technology, the results show that the structure using seismic isolation technology has obvious safety performance improvement and economic benefits.
Keywords:medical building; high seismic fortification intensity area; isolation design; rubber isolation support
作者簡介:王啟文,博士,教授級高級工程師,Email:470468786@qq.com。